Sugar-cane and like mill returner-bar.



A. McA. LANG. SUGAR CANE AND LIKE MILL RETURNER BAR.

APPLICATION FILED JAN I6. I915.

Patented Oct. 5, 1915.

2 SHEETS-SHEETI Ira wi COLUMBIA PLANOGRAPH c0.,wAsl-IINGTON. D. c.

A.-McA. LANG.

SUGARCANE AND LIKE MILL RETURNER BAR.

APPLICATION FILED JAN. 16. 1915.

l ,1 56,01 2. Patented Oct. 5, 1915.

'2 SHEETS-SHEET 2.

COLUMBIA PLANbGRAPH CO-JVASHINGTON, D. c.

% UNITED STATESATT ARCHIBAIYID McA. LAN-G, 0F LIVERPOOL, ENGLAND.

SUGAR-CANE Arm LIKE MILL RETUBNER-BAR.

To all whom it may concern: Be it known thatI, ARCHIBALD MGARTI-IUR LANG, a subject ofthe King :of England, residing at 17 York street, Liverpool, in the county of Lancaster, England, have invented new and useful Improvements in or Connected with Sugar-Cane and like Mill Returner-Bars, of which the following is a specification. Y i 1 This invention has reference to three roller sugar cane and like mills, and especially to the. returner bar, and parts connected with it, lying between the two lower rollers, and serving to lead or direct the cane delivered from the upper and intake lower roller, and

delivering it to the nip between the'upper and the second and discharge-lower roller.

This invention will be described with reference to the accompanyingdrawings which:

illustrate it.

In the drawings Figure 1 is a cross section through a mill provided with the improvements; and Fig. 2 is an end view of the same. Fig. 3 is a longitudinal section showing a modification.

Referring to the drawings, a are the main frames or headstocks of the mill; and b, c and (Z, the three rollers.

e is the returner bar supporting beam, and e the returner bar proper, on the upper edge of same; and f are the stools formedor connected with the lower portionv of the frames or headstocks a,-and carrying movable'sup porting bearing parts g by which the beam 6 and supporting parts are adjustable at their lower portions.

The beam 6, as is usual in mills of this kind, and the returner bar 6 extendacross the mill from side to side, inside the main frames or headstocks a; and, as in somekinds, of known mills, the beams and their supporting means are adjustable, so that the returner bare can be adjusted bodily in relation to the rollers 0 and b at the intake side, and its leading edge brought into position-in relation to the surface of the intake lower roller, and also generally adjusted as required. In some cases, in mills as heretofore constructed, this adjustment has been effected by ordinary movable :cutters or wedges, through whichthe adjustment 0f the returner bar in a direction at right-angles to the axes of the rollers, and in some cases vertically, can be accomplished; while in other cases, it has been effected by screw-i t g ar, or the like; and in some cases Specification of Letters Patent.

Patented'flet. 5, 1915.

Application filed'J'anuary 16, 1915-. SerialNo. 2,681.

moreover, the returner bar beam is capable of being rocked about its lower edge, more or less by threaded rods and nuts or the like; :and this invention is directed to mills having'returner bars and beams of the latter character In the machine shown, the beam 6 has at each end below, a species of gudgeon or cylindrical base it, which is preferably fixed to it by a'staple-shaped clamp fastening 12, and this gudgeon or bearing piece on each end rests in a corresponding seat on the mov: able bearing block- 9 which rests on the'stoo'l 7 below, formed in one with the headstock or. frame a.

The bearing block 9 is capable of adjustment longitudinally onthe stool f by means of screw studs 2' passing through upwardly projecting thrust parts or ends 7 of the stools, and screwing through a nut j fitting ma recess in the inside edge of the thrust parts f so that they cannot turn around; and the blocks g are held dow'ninposition by vertical stud bolts and nuts is, passing through slottedopenings in theirends.

As will be seen, the ends of the stools f lie'within the ends of the headstocks or frames a, and the insides of the thrust parts 7" of the stools are comparatively close to the ends of the bearing blocks 9.

lhe upper part 'of the rocking beam 6 is held and'adjusted by means -of a long bolt lat each'end, which fits over a pin m on the end of the beam 6 at the-upper part; 'a-ndthe bolts extend out to the outside of-the mill in an upwardly inclined direction, andpass through lugs or bosses at on the inside of the wedge shaped below, so that when they are moved longitudinally, they may also by virtue of the wedge shape he adjusted vertically. This 'consltruction i-s illustrated in Fig: 3, and in this figure, which illustrates this modification, for this purpose, there are two blocks, the upper block 9 forming the bearing proper, on which rests the trun- .nions h of the beam ha i g n in n d lower surface; and another block 9 below, the upper surface of which is inclined, cor: responding to the inclined surface of g, and which is also adjustable longitudinally, and in itself rests on the stool f. In this case, the adjusting bolts pass longitudinally through the blocks g, 9 and the thrust parts f are cast on the inside of the frame of the machine, instead of on the ends of the stools f, and they are, adjusted longitudinally by means of nuts fitting on the ends of the screw bolts 2', as will be understood. Thus by these means, by adjusting both blocks 9, g longitudinally together, longitudinal adjustment of the bearing blocks'and lower part of the beam 6 is effected; while, to give vertical adjustment alone, only the lower block 9 is adjusted longitudinally on the stools Hence, longitudinal adjustment only is accomplished by moving both blocks 9, g longitudinally together, or equally; longitudinal and vertical adjustment is accomplished by moving the upper block 9, and vertical adjustment is effected by moving the lower block 9 only longitudinally, the other remaining stationary.

As a modification of the above, one hearing block only of wedge shape, equivalent to 9 above described may be used; and this may rest on loose plates below, between it and the stool 7", so that by moving these to- --gether along the stool f, longitudinal adjustment of the bearings for the returner bar beam is effected; while the vertical adjustv ment is effected by forcing in, in any suitable way, the loose plates under the block 9.

. In this case, as in the former, the blocks are held down by stud-bolts and nuts k, and the thrust blocks f are slotted where the upper bolts 2' pass through them, to allow for vertical movement of the upper block.

What is claimed is 1. In sugar cane and like mill, the combination of an adjustable returner bar; longitudinally adjustable bearing parts; stools on which the said bearing parts are supported;

trunnion supports on the returner bar beam,

Copies of this patent may be obtained for five cents each, by addressing the upper part of the return bar beam; and wedge means for adjusting the returner bar vertically, disposed beneath the said former bearing parts; substantially as described.

3. In a sugar cane or like mill, the combination of the frames or headstocks; supporting stools formed on the inner side of same; longitudinally adjustable bearin blocks supported on the said stools; astemng bolts; adjusting bolts; upwardly projecting gudgeons on the bearing blocks; returner bar beam resting at each end on the upper side of the said gudgeons; returner bar on the said beam; and adjusting bolts on the inside of the frames, secured at one end to the said returner bar beam, and the other provided with a nut for adjusting same; substantially as described.

4. In a sugar cane mill, the combination with the returner bar, of'means which provides a rocking support for the return bar, means for adjusting said means vertically, means for adjusting said supporting means horizontally, and means for rocking the returner bar on its support.

5. In a sugar canemill, the combination with the return bar of a bearing block adapted to provide a rocking support for the returner bar, a. support for supporting the bearing block, means for adjusting the bearing block horizontally and vertically on its support, and means for rocking the returner bar on its support.

6. A returner bar and support therefor for sugar cane mills including a main body portion, rounded extensions at each end thereof, supports having seats' adapted to receive said rounded extensions, means for moving the support horizontally and vertically, and means for rocking the returner bar on its support.

7. A returner bar and support therefor for sugar cane mills including a main body portion having recesses in the lower edge of each end, cylindrical members adapted to be held in said recesses and which provide a rounded bearing surface, bearing blocks, each having a seat adapted to receive said cylindrical members, supports adapted to provide a sliding support for the bearing blocks, means for adjusting the bearing blocks vertically and horizontally on the supports, and means for rocking the returner bar on its supports.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARCHIBALD MoA. LANG.

Vitnesses:

SOMERVILLE GooDALL, FRANK E. 'FLEETXVOOD.

Commissioner of Patents.

Washington, D. G. 

